Juniper SRX DHCP Server
I am adding a new VLAN to my network and I need my SRX to hand out IP addresses for that subnet. The vlan number I am using is 19. I am calling this network PUBLICVLAN Set up the irb … Continue reading →
Category Archives: SRX
JunOS : Versions running on dual partitions are not same
This appears on the console when booting a Juniper device: WARNING: JUNOS versions running on dual partitions are not same This will happen on an upgrade of JunOS. To resolve this issue, make sure you are currently booted on the … Continue reading →
Restore Juniper SRX from backup
Assuming you backup your SRX every time you make a change (see here) , you may have a need one day to restore your settings. To do so root@srx# load replace scp://username:password@IP.Of.Backup.Server/path/NameOfConfigFileToLoad.conf.gz root@srx# commit Where: username is a username … Continue reading →
Juniper SNMP Settings
SNMP V1 and V2c set snmp location “Text String That Indicates Where This Is At” set snmp contact “usually@MyEmail.com” set snmp community MyCommunityString authorization read-only set snmp community MyCommunityString clients ip.addresses.allowed.access/24 set snmp community MyCommunityString clients moreip.addresses.allowed.access/24 SNMP V3 set … Continue reading →
SRX Dual ISP Failover
I have a simple situation – I have two ISP’s. The gateway of my primary (i.e. providing the fastest service) is 9.9.9.9. The gateway of my secondary isp is 8.8.8.8 # My default route via my primary ISP set routing-options … Continue reading →
Configuring DNAT on Juniper SRX300
I have a web server (10.9.21.17) behind my Juniper SRX firewall. I want to make it available to the Internet. I have one static public ip address (1.1.1.116) and it is bound to the interface facing the Internet edit security … Continue reading →
DHCP and/or Ping does not work on inside interface on SRX 300
Problem: Traffic passes through to the outside/Internet on SRX, but the dhcp server does not assign ip addresses and you cannot ping the SRX from the inside Solution: The system services were blocked on the inside network. Example as follows: … Continue reading →
Backup your Juniper SRX every time you commit changes made to it
Add the following to your configuration Set up a location to scp your configurations to set up the time zone and ntp service – see my note Juniper – How to configure NTP Next – setup your host name:| set … Continue reading →
SNMP v3 and Cacti
A quick synopsis on setting up a Cisco ASA and a Centos 6 or 7 system to use SNMP v3 to be monitored by Cacti Cisco ASA en conf t # create a snmp-server group (needed for SNMP v3) # … Continue reading →